🌱 Bump distroless/base in /cron/webhook (#1794)

Bumps distroless/base from `792dfe7` to `764b74b`.

---
updated-dependencies:
- dependency-name: distroless/base
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Azeem Shaikh <azeemshaikh38@gmail.com>

Author: dependabot[bot]

cron/webhook/Dockerfile

@@ -24,6 +24,6 @@ ARG TARGETOS
 ARG TARGETARCH
 RUN CGO_ENABLED=0 make build-webhook
 
-FROM gcr.io/distroless/base:nonroot@sha256:792dfe78a236dfb6fb180a250d105e0a03585dcbc73f8fce033fe62d4fd59bcb
+FROM gcr.io/distroless/base:nonroot@sha256:764b74b1789b4ec9044e6f20bb938d077fe8c7bcf9e4d3767eebb440c5d76f11
 COPY --from=webhook /src/cron/webhook/webhook cron/webhook/webhook
 ENTRYPOINT ["cron/webhook/webhook"]